Troubleshooting

How to Use Capsicum Sandboxing on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Use Capsicum Sandboxing on FreeBSD 12

Introduction FreeBSD 12 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up use capsicum sandboxing on freebsd 12 on FreeBSD 12 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux distribution. […]

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How to Configure GELI Disk Encryption on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure GELI Disk Encryption on FreeBSD 12

Introduction How to Configure GELI Disk Encryption on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet […]

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How to Set Up Fail2ban on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up Fail2ban on FreeBSD 12

Introduction FreeBSD 12 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up set up fail2ban on freebsd 12 on FreeBSD 12 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux distribution. […]

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How to Harden Web Servers on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Harden Web Servers on FreeBSD 12

Introduction Deploying harden web servers on freebsd 12 on a FreeBSD 12 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base […]

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How to Scan for Vulnerabilities with OpenVAS on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Scan for Vulnerabilities with OpenVAS on FreeBSD 12

Introduction This guide explains how to Scan for Vulnerabilities with OpenVAS on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for […]

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How to Configure DNSSEC on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure DNSSEC on FreeBSD 12

Introduction This guide explains how to Configure DNSSEC on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege separation. […]

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How to Set Up a Certificate Authority with OpenSSL on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up a Certificate Authority with OpenSSL on FreeBSD 12

Introduction How to Set Up a Certificate Authority with OpenSSL on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, […]

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How to Configure MAC Policies on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure MAC Policies on FreeBSD 12

Introduction How to Configure MAC Policies on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, […]

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How to Use the CSS Box Model – CSS Tutorial 2025–2026

How to Use the CSS Box Model – CSS Tutorial 2025–2026

Learning how to use the CSS box model is one of the most fundamental and frequently used skills in any CSS tutorial for beginners — every single visible HTML element on the web is a box, and the CSS box model determines how content, padding, border, and margin work together to control size, spacing, and layout. Mastering the CSS box model lets you precisely adjust element dimensions, create consistent spacing, build cards, sections, grids, and responsive designs without surprises or broken layouts. In this guide, you’ll explore each layer of the CSS box model (content → padding → border → margin), adjust their values hands-on, and understand margin collapse using your css-practice project

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How to Install Vault for Secrets Management on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Install Vault for Secrets Management on FreeBSD 12 (FREEBSD-12-2)

Introduction Deploying install vault for secrets management on freebsd 12 on a FreeBSD 12 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the […]

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